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Description

BMW Z3 central top mounts (96-02) BC Racing DS coilover kit 5/8 kg/mm

The BC Racing DS coilover kit Z3 (part number I-10-DS-DA) is a coilover kit adjustable in height and damping, also simply called a coilover, for the BMW Z3 with rear-wheel drive, including the Z3 M, model years 1996 to 2002. The spring rate is 5 kg/mm front and 8 kg/mm rear.

The DS series is the track-focused line from BC Racing. The monotube dampers have a digressive piston that damps more firmly at low piston speeds (0 to 50 mm/s), that is, during roll, dive and compression in long corners. As a result, the Z3 stays flatter when turning in and braking.

BC Racing UK lists this DS kit for the Z3 with original central top mounts. If your Z3 has offset top mounts, please contact us before ordering so that we can check the fitment. As with the BR, you set the ride height independently of the spring preload, and you immediately recognise the satin chrome damper body.

Key benefits

• Digressive piston: firmer damping at 0 to 50 mm/s, for less body movement.
• Track-focused: made for drivers who regularly take their Z3 on track.
• 30 clicks: compression and rebound adjustable together, per damper.
• Ride height independent of spring preload: lower the car without changing the spring preload.
• Spring rate 5/8 kg/mm: the same as the BR kits for the Z3.
• Pillowball top mounts or camber plates at the front: with rubber or the original mounting at the rear.
• Satin chrome damper body: characteristic of the DS series.
• Concave lower lock ring: keeps the height setting in place.
• Rebuildable: the dampers can be rebuilt.

Suitable for

BMW Z3 with rear-wheel drive, including the Z3 M, model years 1996 to 2002; BC Racing UK lists this kit for cars with original central top mounts

• Regular track days with a Z3 or Z3 M
• Sporty road use with tightly tuned suspension
• Drivers who want more control over body movement than the BR offers

Technical specifications

• Manufacturer: BC Racing
• Part number: I-10-DS-DA
• Series: DS, track-focused, with satin chrome damper body
• Version: listed by BC Racing UK for the Z3 with original central top mounts
• Spring rate front/rear: 5/8 kg/mm
• Damper design: monotube with digressive piston, firmer damping at low piston speed (0 to 50 mm/s)
• Damping: 30 clicks, compression and rebound simultaneously
• Ride height: adjustable via the damper body, independent of the spring preload
• Top mounts: pillowball top mounts or camber plates at the front, rubber or original mounting at the rear
• Contents: dampers and springs front and rear, lower mounts, top mounts where applicable, adjustment spanners and warranty card with serial number
• Warranty: 1 year on manufacturing defects; noise from track use is not covered by the warranty

Fitting and delivery

Before ordering, check which top mounts your Z3 has; BC Racing UK lists this kit under the central top mounts. The kit is vehicle-specific and replaces the original dampers and springs. We recommend having it fitted by an experienced mechanic. On some cars the pillowball top mount at the front requires a small modification to the upper mounting; if in doubt, contact us. After adjusting the height, book a wheel alignment, especially if you use the car on track. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If BC Racing temporarily has the kit out of stock, you can still order and you will hear from us when it will be delivered.

The BC Racing DS for the BMW Z3 combines a digressive piston with 30-click damping adjustment and a spring rate of 5/8 kg/mm.

Why choose this DS coilover kit Z3?

Because the DS is built for drivers who take their Z3 on track more often. The digressive damping keeps the car flat through fast sequences of corners and under hard braking, and with 30 clicks you tune it for each circuit. At the same time, the Z3 remains usable for the drive to the circuit and back home again.

BC Racing coilover kits for the BMW Z3

Overview of the BC Racing series for the BMW Z3 supplied by Race4DriftParts, with the BC Racing part number. Spring rates in kg/mm, front/rear.

Frequently asked questions

What is the difference between the BC Racing DS and BR for the BMW Z3?

The DS coilover kit Z3 has a digressive piston and is track-focused, the BR has a linear piston and is intended for the road with the occasional track day. For the Z3, both have 5/8 kg/mm and 30 clicks; you recognise the DS by its satin chrome damper body.

Does the BC Racing DS coilover kit for the Z3 also fit with offset top mounts?

That has not been confirmed. BC Racing UK only lists the DS for the Z3 in the version with original central top mounts, including the Z3 M. If your Z3 has offset top mounts, please contact us before ordering; a separate offset version of the BR is available.

When should you choose the BC Racing RM instead of the DS for the BMW Z3?

When the Z3 is mainly used for track days, hill climbs or tarmac rally and is driven little on the road. The RM has fully synthetic oil and 6/6 kg/mm, but needs periodic greasing and BC Racing recommends it less for road use; for combined road and track use, the DS is the more obvious choice.

Is noise covered by the warranty of the BC Racing DS for the Z3?

No, noise from track use is not covered by the warranty. BC Racing gives a 1 year warranty on manufacturing defects.

What is the delivery time of the BC Racing DS coilover kit for the BMW Z3?

1 to 2 weeks, as long as the manufacturer has stock. If it is temporarily sold out, you can still order and we will let you know when it is in.

Delivery outside the European Union: different shipping costs may apply. Don’t worry: we will email you as soon as possible after your order and agree the shipping with you. You are not committed to anything without your consent.